Capitalising on the RF mount on EOS R system, the RF16mm f/2.8 STM provides an ultra-wide-angle focal length with a large aperture in a lightweight and compact design that delivers outstanding image quality throughout the image periphery.
| Focal Length |
| 16mm |
| Maximum and Minimum Aperture |
| F2.8 – F22 |
| Lens Mount Type |
| RF Mount; Metal Mount |
| Compatible Cameras |
| Canon EOS R-series, including full-frame |
| Minimum Focusing Distance |
| 5.1 in. / 0.43 ft. / 0.13m |
| Maximum Magnification |
| 0.26x |
| Field of View, at Minimum Focus Distance |
| Approx. 5.3 x 3.5 in. (134 x 90mm) |
| Angle of View (Diagonal) |
| Approx. 108°10" |
| Optical Design |
| Lens Construction |
| 9 elements in 7 groups |
| Special Elements |
| (One) Aspherical element |
| Lens Coating |
| Canon SSC (Super Spectra Coating) |
| Filter Size Diameter |
| ø43mm |
| Aperture Blades |
| 7; circular shape |
| Image Stabilization |
| None (with EOS R5 in-body stabilization – 5.5 stops correction) |
| Focusing |
| Focusing Drive System |
| Canon STM (Stepping motor; gear-type) |
| Full-time Manual Focusing |
| Yes |
| (after One-Shot AF; after Servo AF with compatible EOS R-series cameras) |
| Dual Pixel CMOS AF Coverage@999br/> (Horizontal x Vertical) |
| EOS R/RP — Approx. 88% x 100% |
| EOS R5/R6 — Approx. 90% x 100% |
| Face Detect + Tracking – Approx. 100% x 100% |
| Exterior Design |
| Control Ring |
| Dual-function Manual focus ring / Control Ring (selected with switch on lens) |
| No clicks when set to Control Ring function |
| Manual Focus Ring |
| Electronic ring system |
| Full-time Manual focus possible |
| No physical limit to ring rotational angle |
| AF/MF Switch |
| None - focus mode selected in camera menu |
| MF/Control Ring Switch |
| Provided on lens barrel |
| Distance Scale |
| Yes |
| (after One-Shot AF; after Servo AF with compatible EOS R-series cameras) |
| Distance Limiter Switch |
| None |
| Distance scale available in EVF or Live View LCD screen of compatible EOS R-series cameras |
| Dust / Weather Resistant Construction |
| None |
| Dimensions, Weight |
| Maximum Outer Diameter x Length |
| Approx. 1.6 in. x 2.7 in. (40.1 x ø69.2mm) |
| Weight |
| Approx. 5.8 oz. / 0.4 lb. / 165g |
| Accessories |
| Lens hood |
| Canon EW-65C |
| Bayonet-mount, petal-shaped hood |
| Optional accessory, sold separately |
| Lens Cap |
| (Front) Canon E-45 (center pinch-type) (Bundled) |
| (Rear) Canon Dust Cap RF |
| Dust Cap |
| Canon Lens Dust Cap RF (Bundled) |
| Lens Case |
| Canon Lens Case LP1014 |
| Optional accessory, sold separately |
| Extension Tubes |
| None (No Canon RF mount extension tubes) |
| Close-up Lenses 250D / 500D |
| None (no ø43mm size available) |
| Canon RF Extender 1.4x/2x |
| Not compatible |
| Canon Gelatin Filter Holder III/IV |
| Not compatible |
